corrosion-resistance

stainless steel

SUS304 vs SUS316: How to Choose Between the Two Most Common Stainless Grades

SUS304 vs SUS316: Mo addition raises PREN from 20 to 25 and costs 30–50% more. Full comparison of corrosion resistance, strength, weldability, and a clear decision framework.
2026.06.23
stainless steel
stainless steel

SUS304 vs SUS430: Austenitic vs Ferritic Stainless — Corrosion, Cost, and Formability

SUS304 vs SUS430: ferritic SUS430 is ~30% cheaper and magnetic but has lower corrosion resistance and formability. Full comparison with environment-based selection guide.
2026.06.22
stainless steel
stainless steel

JIS SUS316L Steel: AISI 316L Equivalent — Low-Carbon Mo Stainless for Welded Equipment

SUS316L (JIS G4303) limits carbon to 0.030% to prevent weld sensitization. Full guide: 1.4404 equivalents, composition vs SUS316, mechanical properties, and when to specify L-grade.
2026.06.19
stainless steel
stainless steel

JIS SUS316 Steel: AISI 316 Equivalent — Mo-Alloyed Stainless for Chloride Environments

SUS316 (JIS G4303) is Japan's Mo-alloyed austenitic stainless. Full guide: AISI 316 / 1.4401 equivalents, composition, pitting resistance vs SUS304, and when the Mo upgrade is worth it.
2026.06.19
stainless steel
stainless steel

JIS SUS329J3L Steel: SAF 2205 Equivalent — Duplex Stainless for Strength & Corrosion

SUS329J3L (JIS G4303) is Japan's SAF 2205-equivalent duplex stainless — PREN 34–38, twice the strength of SUS304, and superior stress-corrosion cracking resistance. Properties and applications guide.
2026.06.18
stainless steel
stainless steel

JIS SUS430 Steel: AISI 430 Equivalent — Ferritic Stainless, No Nickel, Magnetic

SUS430 (JIS G4303) is Japan's standard ferritic stainless — 17% Cr, no Ni, magnetic, ~30% cheaper than SUS304. Full guide: 1.4016 equivalents, properties, limits vs SUS304.
2026.06.17
stainless steel
steel

SUS304 Stainless Steel: AISI 304 / 1.4301 Equivalent, Properties & Applications

SUS304 (JIS G4303) is Japan's most-used austenitic stainless steel. Full guide: AISI 304 / 1.4301 equivalents, composition, properties, corrosion limits, and welding.
2026.05.11
steel